Finding the Fourth Proportional to 13,560,547.83, 18,713,707.65 and 7,980,028.09
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Solution
The fourth proportional to 13,560,547.83, 18,713,707.65 and 7,980,028.09 is: 11,012,528.00
Step by Step Solution
- Step 1: Write the proportion equation
13,560,547.83 : 18,713,707.65 = 7,980,028.09 : x - Step 2: Convert to fraction form
13,560,547.83/18,713,707.65 = 7,980,028.09/x - Step 3: Cross multiply
13,560,547.83x = 18,713,707.65 × 7,980,028.09 - Step 4: Simplify right side
13,560,547.83x = 149,335,912,668,263.62 - Step 5: Solve for x
x = 149,335,912,668,263.62/13,560,547.83 - Step 6: Final answer
x = 11,012,528.00
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.